Constantius II AV 2 Solidi of Antioch. AD 337-341. 

FL IVL CONSTANTIVS PERP AVG, pearl-diademed, draped and
cuirassed bust left.
GLORIA ROMANORVM, emperor standing front, looking left,
in spread quadriga, scattering coins and holding 
eagle-tipped sceptre. 
Crossed P in right field.
Mintmark SMAN.

RIC VIII Antioch 78. 
Rated R4.

With permission of Numismatica Ars Classica, May, 2006.